TWI387224B - Frequency hopping in an sc-fdma environment - Google Patents

Description

Frequency hopping in a single carrier frequency division multiple access environment

The following description is generally directed to wireless communications, and more particularly to providing frequency hopping in single carrier divided multiple access transmissions.

Wireless communication systems are widely deployed to provide various types of communication content such as, for example, voice, material, and the like. A typical wireless communication system can support multiple access systems that communicate with multiple users by sharing available system resources (e.g., bandwidth, transmit power). Examples of such multiple access systems include: code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, and orthogonal frequency division multiple access (OFDMA) ) System and so on.

In general, a wireless multiple access communication system can simultaneously support communication for multiple mobile devices. Each mobile device can communicate with one or more base stations via transmissions on the forward and reverse links. The forward link (or downlink) refers to the communication link from the base station to the mobile device, and the reverse link (or uplink) refers to the communication link from the mobile device to the base station. Further, communication can be established between the mobile device and the base station by a single input single output (SISO) system, a multiple input single output (MISO) system, a multiple input multiple output (MIMO) system, or the like.

MIMO systems commonly employ multiple (N _T) transmit antennas and multiple (N _R) receive antennas for data transmission. A MIMO channel can be decomposed by the N _T transmit antennas and N _R receive antennas it into N _S independent channels - which may be referred to as spatial channels, where N _S { N _T , N _R }. Each of the N _S independent channels corresponds to one dimension. Moreover, MIMO systems can provide improved performance (e.g., improved spectral efficiency, higher throughput, and/or higher reliability) if the additional dimensions formed by the plurality of transmit and receive antennas are utilized.

A MIMO system can support various duplexing techniques for dividing forward link and reverse link communications on a common physical medium. For example, a frequency division duplex (FDD) system can use a completely different frequency region for forward link and reverse link communications. In addition, in a time division duplex (TDD) system, a common frequency region can be used for forward link and reverse link communication. However, the prior art can only provide limited or no information about the channel information.

A brief summary of one or more embodiments is provided below to provide a basic understanding of the embodiments. The summary is not an extensive overview of the various embodiments, and is not intended to be Its sole purpose is to present some concepts of one or more embodiments

Various aspects are illustrated in connection with facilitating single carrier frequency hopping, frequency division multiple access (SC-FDMA) transmission, in accordance with one or more embodiments and their corresponding disclosure. The user profile transmitted in a transmission configuration unit can be frequency shifted with respect to the time-based time slot of the configuration unit. As a result, frequency hopping can be achieved while maintaining the single carrier constraint and low peak-to-average power ratio (PAPR) that are typically desired for SC-FDMA transmission. In addition, various frequency shifting mechanisms can be disclosed to achieve maintenance of single carrier constraints. More specifically, a selection may be made between cyclic frequency shifting, transposed frequency shifting, and frequency selective scheduling data and multiples of frequency hopping data based on one of the scheduled data for the transmission configuration unit. As a result, the interference reduction achieved by frequency hopping can be combined with the low PAPR achieved by SC-FDMA transmission.

In accordance with a related aspect, this document provides for providing frequency hopping for maintaining single carrier constraints in a single carrier divided multiple access (SC-FDMA) transmission. The method can include dividing a transmission configuration unit into at least two time-based time slots having a plurality of frequency sub-divisions. Moreover, the method can include configuring one of the user profiles to one of the first secondary frequency divisions of the first time slot, and arranging one of the user data for subsequent partial displacement to one of the second subsequent time slots The second sub-frequency.

Yet another aspect relates to a device that provides frequency hopping in SC-FDMA transmission. The apparatus can include a means for dividing a transmission configuration unit into at least two time-based time slots having a plurality of secondary frequency division frequencies. Additionally, the apparatus can include a means for configuring a portion of the user profile to a first secondary frequency of a first time slot, and a means for subsequently shifting one of the user profiles to A member of a second secondary frequency dividing frequency of a second subsequent time slot.

Another aspect relates to a system that facilitates frequency hopping in SC-FDMA transmission. The system can include a multiprocessor that divides a transmission configuration unit into at least two time-based time slots having a plurality of secondary frequency division frequencies. Further, the system can include a scheduler configured to configure a portion of the user profile to a first secondary frequency of a first time slot and to subsequently configure one of the user profiles to a second subsequent time One of the slots is frequency shifted by a second secondary frequency.

A further aspect relates to a processor that facilitates frequency hopping in SC-FDMA transmission to maintain single carrier constraints. The processor can include a means for dividing a transmission configuration unit into at least two time-based time slots having a plurality of secondary frequency division frequencies. Additionally, the processor can include a means for configuring a portion of the user profile to a first secondary frequency of the first time slot, and a means for subsequently shifting one of the user profiles A member of a second secondary frequency divided by a second subsequent time slot.

Yet another aspect relates to a computer program product that facilitates frequency hopping in SC-FDMA transmission to maintain single carrier constraints. The computer program product can include code executable by at least one computer to: divide a transmission configuration unit into at least two time-based time slots having a plurality of secondary frequency divisions Configuring a portion of the user data to a first sub-frequency of a first time slot; and subsequently shifting one of the user data to a second sub-frequency of a second subsequent time slot frequency.

Another aspect relates to a method of applying frequency hopping to transmit data on an SC-FDMA uplink channel. The method can include receiving information about frequency shifting configuration of user data across a plurality of time slots of a transmission configuration unit for use in an SC-FDMA uplink transmission, and organizing user data into a transmission data based on the received information. Packet.

Yet another aspect relates to a device for applying frequency hopping to transmit data on an SC-FDMA uplink channel. The apparatus can include a means for receiving information about frequency shifting of user data across a plurality of time slots of a transmission configuration unit for use in an SC-FDMA uplink transmission, and a means for receiving information based on the received information Organize user data into a component that transmits data packets.

Yet another aspect relates to a system for applying frequency hopping to transmit data on an SC-FDMA uplink channel. The system can include an antenna that receives information about frequency shifting configuration of user data across a plurality of time slots of a transmission configuration unit for transmission of an SC-FDMA uplink. Additionally, the system can include a scheduler that organizes user data into a transport data packet based on the received information.

Yet another aspect relates to a processor that applies frequency hopping to provide transmission of data on an SC-FDMA uplink channel. The processor can include means for receiving information regarding a frequency shift configuration of user data across a plurality of time slots of a transmission configuration unit for transmission of an SC-FDMA uplink. Additionally, the processor can include a means for organizing user data into a transport data packet based on the received information.

A further aspect relates to a computer program product for facilitating the application of frequency hopping to provide transmission data on an SC-FDMA uplink channel. The computer program product can include code executable by at least one computer to receive information about a frequency shift configuration of user data across a plurality of time slots of a transmission configuration unit for transmission of an SC-FDMA uplink. Additionally, the computer program product can include a code executable by at least one computer to organize user data into a data packet based on the received information.

In order to achieve the above and related ends, the one or more embodiments include a plurality of features which are fully described below and particularly pointed out in the scope of the claims. Some illustrative aspects of the one or more embodiments are described in detail in the following description and the drawings. However, the exemplifications are only a few of the various ways in which the principles of the various embodiments can be utilized and the embodiments are intended to include all such aspects and their equivalents.

Various aspects will now be described with reference to the drawings, in which the same reference numerals are used throughout the drawings. In the following, for the convenience of explanation, a number of specific details are set forth in order to achieve a thorough understanding of one or more aspects. However, it will be apparent that such aspects may be practiced without such specific details. In other instances, well-known structures and devices are shown in block diagram form in order to illustrate one or more aspects.

Further, various aspects of the present disclosure will be described below. It should be understood that the teachings herein may be embodied in a variety of forms and that any specific structure and/or function disclosed herein is merely representative. Based on the teachings herein, those skilled in the art will appreciate that the aspects disclosed herein can be constructed independently of any other aspect and that two or more of the aspects can be combined in various ways. For example, any number of the aspects described herein can be used to construct a device or practice a method. In addition, other structures and/or functionality may be used to construct or practice the device in addition to one or more of the aspects described herein. As an example, many of the methods, apparatus, systems, and devices described herein are described in the context of a wireless communication environment that provides for the simultaneous or unplanned/semi-planned deployment of SFN data for simultaneous transmission and retransmission. Those skilled in the art should be aware that similar techniques can be applied to other communication environments.

As used in this application, the terms "component", "system" and the like are intended to mean a computer-related entity, a hardware, a software, an executing software, a firmware, an intermediate, a microcode, and/or Any combination of them. For example, a component can be, but is not limited to, a processor running on a processor, a processor, an object, an executable, a thread, a program, and/or a computer. One or more components can reside within a process and/or a thread, and a component can be limited to one computer and/or distributed between two or more computers. In addition, the components can be executed on a variety of computer readable media having various data structures stored thereon. The components may be signaled by a local and/or remote processing program, for example, based on a signal having one or more data packets (eg, from one interacting with, and/or borrowing from, another component in a local system, a distributed system) Communication is carried out by means of signals that span the components of a network (eg, the Internet) that interact with other systems. In addition, as will be appreciated by those skilled in the art, the components of the systems described herein may be rearranged and/or constructed by additional components to achieve various aspects, objectives, advantages, etc. described herein, and the systems described herein. The components are not limited to the precise configuration described in a given figure.

In addition, in this article, the user station is used to illustrate various aspects. A subscriber station can also be called a system, a subscriber unit, a mobile station, a mobile station, a remote station, a remote terminal, an access terminal, a user terminal, a user agent, and a user device. Or user equipment. A subscriber station can be a cellular telephone, a cordless telephone, a SIP protocol telephone, a wireless local loop (WLL) station, a PDA, a hand-held device with wireless connectivity, or Other processing devices connected to a wireless data modem or similar mechanism that facilitates wireless communication with a processing device.

In addition, the various aspects or features described herein can be constructed as a method, apparatus, or article of manufacture using standard stylized and/or engineering techniques. The term "article of manufacture" as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier, or media. By way of example, computer readable media may include, but are not limited to, magnetic storage devices (eg, hard disks, floppy disks, magnetic strips...), optical disks (eg, compact disk (CD), digital versatile discs (DVD) )...), smart cards, and flash memory devices (such as cards, sticks, and pocket-type secure disks). Alternatively, the various storage media described herein may represent one or more devices for storing information and/or other machine-readable media. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or materials.

Moreover, the term "institutive" is used to mean "serving as an instance, instance, or example." Any aspect or design referred to herein as "institutive" is not necessarily considered to be preferred or advantageous over other embodiments or designs. Rather, the use of this example is intended only to mean a particular form of concept. As used in this application, the term "or" is intended to mean "including" or "excluding". That is, "X Application A or B" is intended to mean any of those naturally included arrangements, unless otherwise specified or apparent from the context. That is, if the X application A, the X application B, or the X application A and B, the "X application A or B" is satisfied in the case of any of the above cases. In addition, the articles 1 ("a" and "an") used in the application and the accompanying claims are generally to be interpreted as or meaning "one or more" unless otherwise specified or form.

As used herein, the phrase "infer or inference" refers to the process of deriving or inferring the state of a system, environment, and/or user based on a set of observations obtained by events and/or data. For example, inference can be used to identify a particular context or action, or can produce a probability distribution of states. The inference can be probabilistic, that is, the probability distribution of the state of interest is calculated based on considerations of data and events. Inference can also refer to techniques used to construct higher order events from a set of events and/or data. Such inference may result in the construction of new events or actions from a set of observed events and/or stored event data, whether or not such events are related in a temporally close manner, and regardless of whether the events and data are from one or From several events and sources.

1 illustrates a wireless communication system 100 having a plurality of base stations 110 and a plurality of terminal units 120, for example, that can be combined with one or more aspect applications. A base station is usually a fixed station that communicates with a terminal, and may also be referred to as an access point, a Node B, or some other terminology. Each base station 110 provides communication coverage for a particular geographic area, illustrated as three geographic areas labeled 102a, 102b, and 102c. In the context of the use of terminology, the term "cell" can refer to a base station and/or its coverage area. To improve system capacity, the coverage area of a base station can be divided into a plurality of smaller areas (e.g., divided into three smaller areas according to cell 102a of Fig. 1) 104a, 104b, and 104c. Each smaller area is served by a corresponding base transceiver subsystem (BTS). The term "sector" can refer to a BTS and/or its coverage. For a sectorized cell, the BTSs of all sectors in the cell are usually co-located in the base station of the cell. The transmission techniques described herein are applicable to a system having multiple sectorized cells and a system having multiple unsectorized cells. For the sake of brevity, in the following explanation, the term "base station" is used to both a fixed station serving one sector and a fixed station serving a cell.

Terminals 120 are typically dispersed throughout the system, and each terminal can be both fixed and mobile. A terminal can also be called a mobile station, a user device, or some other terminology. The terminal can be a wireless device, a cellular phone, a personal digital assistant (PDA), a wireless data card, and the like. Terminal 120 can communicate with zero, one or more base stations on the downlink and/or uplink at any given time. The downlink (or forward link) refers to the communication link from the base station to the terminal, and the uplink (reverse link) refers to the communication link from the terminal to the base station.

For a centralized architecture, a system controller 130 is coupled to base station 110 and provides coordination and control for base station 110. For distributed architectures, base stations can communicate with each other as needed. Data transmission from the forward link and/or the maximum data transmission rate that the communication system can support or close to the maximum data transmission rate from an access point to an access terminal occurs on the forward link. Additional channels of the forward link (e.g., control channels) can be transmitted from multiple access points to one access terminal. Reverse link data communication from one access terminal to one or more access points may occur.

2 is an illustration of one of the specific or unplanned/semi-planned wireless communication environments 200 in accordance with one of a variety of aspects. System 200 can include one or more base stations 202 within one or more sectors that receive, transmit, relay, etc. wireless communication signals to each other and/or to one or more mobile devices 204. . As illustrated, each base station 202 can provide communication coverage for a particular geographic area, which are depicted as four geographic areas labeled 206a, 206b, 206c, and 206d. As is known to those skilled in the art, each base station 202 can include a transmitter chain and a receiver chain, each of which includes a plurality of components associated with signal transmission and reception (eg, a processor, a module, Multiplexers, demodulators, demultiplexers, antennas, etc.). The mobile device 204 can be, for example, a cellular telephone, a smart phone, a laptop, a handheld communication device, a handheld computing device, a satellite radio, a global positioning system, a PDA, and/or any other suitable A device for wireless network 200 communication. The system 200 can be applied in conjunction with the various aspects described herein to provide feedback in a wireless communication environment as described in the subsequent figures.

Referring to Figures 3-7, a method for providing frequency hopping in a single carrier frequency division multiple access (SC-FDMA) environment is illustrated. While typical frequency hopping has been demonstrated in standard FDMA environments and quadrature FDMA (CFDMA) environments, a single carrier environment creates a particular frequency hopping problem. First of all, it is not possible to arbitrarily reassign the data of a transmission time period and the assignment of the tone. Any re-redirection usually destroys single-carrier constraints. For example, a continuous assignment of a partial SC-FDMA waveform must be maintained. As a result, the disclosure of the present invention provides a restrictive hopping strategy for maintaining single carrier constraints. As used herein, three example strategies are provided, which are referred to as: cyclic shift hopping, mirror transposed hopping, and multiple strategies for integrated frequency hopping and frequency selective scheduling. However, it should be understood that the additional frequency shifting strategies herein are not specifically related, but are included within the scope of the claimed subject matter, and the associated drawings are also incorporated in this specification.

Although the methods are shown and described as a series of acts for the sake of simplicity of the description, it should be understood and appreciated that the methods are not limited to the order of the acts, which are in accordance with one or more embodiments. It may be performed in an order different from that shown and described herein and/or concurrently with other acts. For example, those skilled in the art will understand and appreciate that a method can also be represented as a series of (eg, in a state diagram) interrelated state or event. Furthermore, not all illustrated acts may be required when constructing a method in accordance with one or more aspects.

FIG. 3 illustrates an example method 300 for facilitating frequency hopping in an SC-FDMA environment. Method 300 can facilitate a controlled frequency hopping strategy consistent with local SC-FDMA (LFDMA) assignments to achieve reduced interference and frequency hopping with low peak-to-average power ratio (PAPR) quality for SC-FDMA transmission. Bandwidth diversity advantages. As a more specific example, method 300 can partition a transmission configuration resource unit into a plurality of sub-portions based on time and frequency. In addition, user profiles distributed across time-based sub-portions can be assigned to sub-portions of different frequencies. More specifically, to maintain a continuous tone assignment necessary to facilitate low PAPR transmissions, method 300 can linearly shift user data segments across time sub-portions, modulo an entire system bandwidth (eg, about linear See Figure 9 below for a detailed description of the cyclic shift. Alternatively or additionally, method 300 can mirror the transposed user data segment across a centerline of the overall system bandwidth (eg, see Figure 10 below for a detailed description of mirror transposition).

According to method 300, at 302, a configuration time period transmission unit (TXMIT unit) can be divided into a plurality of time-based time slots and a plurality of frequency-based secondary frequency division frequencies. For example, the TXMIT unit can be divided into at least two time-based time slots, wherein each time slot includes a portion of a plurality of sub-frequency. The TXMIT unit can have a total transmission time interval (TTI) of, for example, 1 ms. Moreover, for example, the secondary frequency divisions can each share a portion of the total bandwidth of the TXMIT unit, such as 9 MHz. It should be appreciated that any suitable TTI or total bandwidth can be associated with the TXMIT unit in accordance with the disclosure of the present invention and in accordance with single carrier transmission constraints.

At 304, a portion of the user profile can be configured to a first secondary frequency of a first time slot. The user profile can be associated with any communication network service that can be sent over the SC-FDMA-related network (eg, voice services, text messaging such as text messaging, instant messaging, and the like; such as streaming video, streaming audio, etc.) Data services; web browsing; transmission of data over remote data networks, such as an Internet, or the like. As a more specific, non-limiting example, one of the first data portions associated with a stream of video services may be assigned to a secondary frequency of 900 kHz bandwidth associated with a TXMIT unit. More specifically, the 900 kHz sub-frequency may be any suitable sub-frequency, such as one of the 9 MHz bandwidth of a TXMIT unit, first, second, third, ninth, or tenth. Frequency division frequency. It should be understood that those skilled in the art will recognize that the sub-frequency, total bandwidth, and other suitable combinations of data configurations are within the scope of the claimed subject matter and related content. These combinations are incorporated herein.

At 306, the configuration of a subsequent portion of one of the user data is shifted to a second secondary frequency of a second subsequent time slot. Continuing with the previous example, subsequent portions of the user profile may be additional streaming video information associated with a streaming video application. Additionally, the subsequent portion of the user profile can be configured to a sub-frequency of a different 900 kHz frequency at one of the second time slots to facilitate frequency hopping between the first and second time slots. As a result, the low interference advantages of frequency hopping transmission can be incorporated into an SC-FDMA environment by method 300. More specifically, the relationship between the first secondary frequency and the second secondary frequency can be maintained, which maintains continuity of tone assignments during transmission (eg, for continuous tone assignments in SC-FDMA transmissions) For a detailed description, see Figure 8). As a result, an advantageous low PAPR quality of the LFDMA transmission (which reduces the power output of the terminal device during uplink transmission) can also be maintained. As a result, method 300 can provide a novel method of incorporating frequency hopping into an SC-FDMA environment, thereby combining the advantages of both transmission architectures.

4 illustrates an example method 400 for providing cyclic shift hopping for SC-FDMA transmission. Depending on the particular aspect, method 400 can provide frequency hopping in a manner that maintains a continuous tone assignment of a scheduled LFDMA configuration time period. As a result, the method 400 helps integrate the advantages of frequency hopping with the SC-FDMA communication architecture.

According to method 400, at 402, an uplink SC-FDMA configuration transmission unit (TXMIT unit) can be partitioned into a plurality of time-based time slots and a plurality of frequency-based secondary frequency division frequencies. For example, one time slot (eg, 1 ms) of the total TTI of the TXMIT unit can be configured for each time slot of the TXMIT unit, and one of the bandwidths of the TXMIT unit can be configured for each sub-frequency (eg, 9 MHz) . Additionally, the secondary crossover frequency can span the entire TTI such that each time slot is configured with one portion of each secondary frequency.

At 404, in frequency, one of the first sub-frequency of the first time slot and one of the second sub-frequency of the second time slot are separated by approximately one-half of the bandwidth of the TXMIT unit. For example, if the bandwidth is 9 MHz, approximately half of it is approximately 4.5 MHz. Thus, the first and second secondary frequency divisions can be shifted (e.g., linear, modulo the total bandwidth) to a frequency of approximately 4.5 MHz. In addition, each of the sub-frequency divided by the reference number 402 can be linearly shifted by about half of the bandwidth of the TXMIT unit, modulo the total bandwidth (eg, about half of the linear frequency shift and the bandwidth). For details, see Figure 9).

As an illustration of one of the above examples, a TXMIT unit according to one of the methods 400 may have a total bandwidth of 10 MHz. The TXMIT unit can be divided into four sub-frequency divisions, each of which has a bandwidth of approximately 2.5 MHz, such that the bandwidth of the four sub-frequency divisions adds up to exactly 10 MHz. Further, according to a reference number 404, a first sub-frequency having a width of 2.5 MHz corresponding to, for example, a portion of 0 to 2.5 MHz of the total bandwidth may be associated with one of the second slots The frequency is separated by a frequency of about half (e.g., 5.0 MHz) of the total bandwidth. As a result, the corresponding sub-frequency can have a bandwidth of 2.5 MHz corresponding to the 5.0 MHz to 7.5 MHz portion of the total bandwidth.

Also according to reference numeral 404, the linear shift in bandwidth can be "wrapped" from the upper end of the entire bandwidth spectrum to the lower end of the entire bandwidth spectrum, and vice versa. For example, if the first sub-frequency of the first time slot corresponds to a portion of the entire bandwidth from 7.5 MHz to 10.0 MHz, corresponding to the sub-frequency in the second time slot (eg, the second pair) One of the frequency division shifts can include a portion of the entire bandwidth from 2.5 MHz to 5.0 MHz. As an additional example, the first sub-frequency of one of the 5.0 MHz to 7.5 MHz portions having the entire bandwidth may correspond to a second sub-frequency having one of the 0 to 2.5 MHz portions of the entire bandwidth. As a result, a linear shift in frequency can be "wrapped" from an upper limit of a spectrum (e.g., 10.0 MHz) to a lower limit of a spectrum (e.g., 0 MHz), and vice versa. As a result, continuous tone assignments can generally be maintained in accordance with the aspects of method 400 and in accordance with the disclosed subject matter.

At 406, the user profile can be configured to one of the first secondary frequency divisions in a first time slot. At 408, an additional portion of the user profile can be configured to a second secondary frequency of a second time slot. For example, user profiles can be associated with web browsing traffic. The first portion of the web browsing service can be configured to a first time slot (eg, a time-based portion of the TXMIT unit), and a second portion of the web browsing service can be configured to the second time slot. Moreover, as described above, the web browsing traffic in the first time slot can be in a first secondary frequency divided into 0 MHz to 2.5 MHz portions of the entire bandwidth. Then, by arranging the second part of the web browsing service to a second sub-frequency that is configured to linearly shift the entire bandwidth from 5.0 MHz to 7.5 MHz (modulated by the entire bandwidth), it can be transmitted at a high altitude. The frequency offset starts to hop. As a result, due to the frequency offset, the interference in a corresponding SC-FDMA signal can be greatly reduced, and the transmission efficiency is increased. In addition, the configuration schedules provided at reference numbers 406 and 408 can be broadcast to each terminal device within a cell. As a result, transmissions in accordance with this configuration can maintain a continuous tone assignment, establishing a low PAPR associated with the SC-FDMA transmission. Thus, method 400 provides a particular aspect associated with providing frequency hopping in a single carrier environment.

It will be appreciated that as described above, careful division of the secondary crossover frequencies may facilitate maintaining single carrier constraints. For example, if a user data block spans one centerline of an entire bandwidth (for example, a center line of 5.0 MHz for a whole bandwidth of 10.0 MHz, or a line of 4.5 MHz for a whole bandwidth of 9 MHz, etc.), the above linearity The shift frequency "wrap" technique allows user data to appear simultaneously at one of the upper limits of one spectrum and one of the lower limits of the spectrum, thereby disrupting the continuous tone assignment required for single carrier transmission. As a result, avoiding data blocks that span this centerline can be combined with the cyclic frequency shift of method 400 to facilitate proper SC-FDMA transmission. Moreover, the further embodiments described below provide an alternative mechanism for mitigating problems formed by data blocks that span a frequency spectrum centerline.

Figure 5 illustrates an exemplary method for providing mirrored transposition hopping for SC-FDMA transmission. As described below, mirrored transposed frequency hopping can help alleviate problems associated with data blocks that span frequency centerlines. For example, a single carrier constraint would require that the tone of a data block be assigned to be continuous. More specifically, the data allocated to one of the frequency segments of a transmission configuration period should not be interrupted by other data in the segment. As an example, if a data block is configured for a 2.5 MHz to 5.0 MHz portion of a spectrum, only the data associated with that block should be included in this 2.5 MHz to 5.0 MHz portion to maintain data continuity. On the other hand, if a frequency segment simultaneously spans an upper limit and a lower limit of a spectrum, the data assigned to the frequency segment will be discontinuous in frequency (for example, a linear shift of 5.0 MHz and the above application has a span) The spectrum "wrap" of the first sub-frequency of the 3.8 MHz to 6.2 MHz portion of the 10.0 MHz total bandwidth spectrum centerline includes one of the frequency spectrum from 0 to 1.2 MHz and one of the 8.8 MHz to 10.0 MHz portions. Sub-frequency (specifically), because one part of the data will be in the lower part, and the rest of the data in the upper part of the frequency (for example, the configuration of the previous 0 to 1.2 MHz and 8.8 MHz to 10.0 MHz instances) Interruption of the other part of the frequency spectrum between 1.2 MHz and 8.8 MHz).

The problem of correlating data across a centerline frequency with respect to the cyclic shift hopping described with respect to method 400 can be mitigated or reduced by a mirrored transposition technique described by method 500 (for mirror transposition used in method 500). For details, see Figure 10). For mirror transposition, the first and second sub-frequency (eg, corresponding to the first and second time slots, respectively) can be transposed across a centerline frequency of the bandwidth of the TXMIT unit. As a result, since the first secondary frequency is substantially below or above the centerline, respectively, the second secondary frequency can be located substantially equidistantly above or below the centerline. Mirror transposition implies that the data blocks across the centerline are still contiguous. That is, the upper portion of the block is transposed with respect to the lower portion, and vice versa, but the block still spans the centerline and its tone assignments are still continuous, thereby maintaining single carrier constraints.

According to method 500, at 502, an uplink SC-FDMA TXMIT unit can be partitioned into a plurality of time-based time slots and a frequency-based secondary frequency. At 504, the secondary frequency of the first time slot can be transposed across a center line of the bandwidth frequency spectrum with respect to a secondary frequency of the second time slot. As a specific example, a sub-frequency of 0 MHz to 2.5 MHz across a 10.0 MHz spectrum having a centerline approximately 5.0 MHz can be transposed in the second time slot to span the 10.0 MHz spectrum. It is roughly 7.5 MHz to 10.0 MHz. As a further example, the sub-frequency of the 4.0 MHz to 6.5 MHz (crossing the centerline of the spectrum) across the 10.0 MHz spectrum can be transposed in the second time slot by method 500 to span the 10.0 MHz spectrum. Roughly 3.5 MHz to 6.0 MHz. A later example illustrates how a data block spanning a frequency spectrum centerline can be frequency hopped in a second time slot to maintain a continuous tone assignment of the frequency spectrum.

At 506, the user profile can be assigned to one of the first secondary frequency divisions in a first time slot. At 508, an additional portion of one of the user data can be assigned to one of the second time slots of the second time slot. At 510, one of the configurations can be scheduled to be broadcast to a device (eg, a terminal device such as a mobile phone, multi-mode phone, wireless device, etc.), for example, requesting the user profile. As described above, method 500 can achieve frequency hopping in an SC-FDMA environment by maintaining a continuous tone assignment. Additionally, the mirror transposition mechanism of method 500 can mitigate or eliminate problems associated with data blocks spanning one of the centerlines of a spectral frequency as described above.

It should be appreciated that in some cases, the mirror transposition mechanism of method 500 may be less efficient than cyclic shift hopping. In particular, mirrored transposition may facilitate lower sub-frequency diversity of the data block near the centerline frequency of one of the frequency spectra in accordance with the reduced interference typically associated with frequency hopping. However, the multiple mechanisms discussed in more detail below can help mitigate some of the frequency spread problems.

6 illustrates an example method 600 for selecting between SC-FDMA frequency hopping mechanisms based on assignment of user data in accordance with one or more aspects. As described above, method 600 can analyze the configuration of the data specifically to a transmission configuration unit to determine one of the SC-FDMA frequency hopping mechanisms that are best suited for low PAPR and interference transmission. It should be understood that other mechanisms for selecting between the various frequency hopping mechanisms are not specifically associated herein but are within the scope of the present invention.

According to method 600, at 602, an uplink SC-FDMA transmission configuration unit (TXMIT unit) can be divided into a plurality of time slots and a sub-frequency. At 604, the TXMIT unit can be audited to identify user profiles disposed near one of the frequency spectrum centerlines of the TXMIT unit. For example, user data across the centerline can be determined and identified by an audit. At 606, a determination is made whether the audit has identified data across the centerline. If not, the method 600 continues to 608 where at least one subset of data configured within the TXMIT unit can be reconfigured in accordance with the cyclic shift hopping described herein. If at reference number 604, the audit determines that the material does not cross the centerline, then method 600 can continue to 610. At 610, at least one subset of data can be reconfigured in accordance with the mirrored transposition frequency hopping technique described herein. After reference numbers 608 and 610, method 600 can continue to 612 where one of the data configurations can be scheduled to be broadcasted to at least one device that consumes the user data, for example, in an SC-FDMA uplink. Frequency hopping transmission is achieved in the road. As described above, method 600 can provide a slot hopping mechanism that is best suited to maintain single carrier constraints and provide high diversity, low interference, and low PAPR transmission in an SC-FDMA environment.

Figure 7 illustrates an exemplary method for multiplexing multiple frequency hopping and non-hopping transmissions in an SC-FDMA environment. At 702, an uplink SC-FDMA transmission configuration unit (TMXIT unit) can be partitioned into "M" frequency sub-bands and at least two time slots as described herein. At 704, a number of "M" sub-bands corresponding to the set {0, 2, 4...} can be configured to a frequency selective schedule (FSS). More specifically, the FSS data can be configured to a substantially constant frequency portion for at least a portion of the service duration (eg, video sharing, voice call, web browsing, etc.) and service duration. At 706, a number of "M" subbands corresponding to the set {M, M-2, M-4...} can be configured to a frequency hopping schedule (FHS). In addition, the configuration of the FSS and FHS subbands can be constrained such that the total number of assigned subbands is equal to "M".

In addition to the above, at reference numeral 706, the cyclic shift and/or mirror transposed frequency hopping strategies described above may be partially incorporated as part of a frequency hopping configuration. For example, with respect to cyclic shift hopping, data associated with a particular user can be mapped to an FHS sub-band. This result can be achieved by dividing a frequency spectrum into two halves, each having approximately the same number of sub-bands. The sub-bands of each half of the spectrum may be further numbered using a similar set of numbers (e.g., sub-bands in each half may be numbered 1, 2, 3, 4, ..., respectively). In addition, similar numbers of sub-bands in each half of the frequency spectrum can be configured to the FSS set or FHS set of data (see Figure 11 for a detailed description of the configuration of multiple FSS and FHS data).

At 708, the FSS and FHS subbands can be multiplexed in a TXMIT unit. As a specific, non-limiting example, the spaced frequency subbands can be configured to FSS and FHS data. As a further non-limiting example, a frequency sub-band at the lower end of a frequency spectrum can be configured to the FSS data, and a frequency sub-band at the upper end of the frequency spectrum can be configured to the FHS data, or vice versa. It will be appreciated that those skilled in the art will recognize other configuration strategies that are not specifically related in the above examples but are included within the scope of the present invention and which are not included herein. At 710, a configuration schedule of FSS and FHS data can be broadcast to perform uplink transmission of data via multiple frequency hopping strategies in accordance with one of the methods described herein. As a result, method 700 can facilitate providing portions of frequency hopping and non-hopping data in a TXMIT unit to, for example, facilitate communication requirements for each terminal device.

8 illustrates an example SC-FDMA signal conversion that provides a low peak-to-average power ratio. Tandem-to-parallel converter 802 can receive, for example, a data stream having input of a plurality of time-domain modulation symbols in series. The serial to parallel converter 802 can split the input data stream into an output stream having parallel time domain modulation symbols. This output stream can be provided to a Q-point discrete Fourier transform (Q-pt DFT) device 804. The data stream can then be converted by Q-pt DFT 804 to represent portions of the distinct time domain data as frequency domain data. The data portions can be provided to a spectral shaping component 806 that can further shape the frequency domain spectrum to minimize spectral leakage. The spectrum shaping component 806 can then transmit the formed frequency domain data stream to a tone mapping component 808, which can adjust the subcarriers within the data stream to a particular portion of a frequency spectrum, for example occupying a single carrier. Constrains the contiguous portion of the data stream required. The tone map 808 can then provide the mapped data stream to an N-point inverse fast Fourier transform (N-pt IFFT) 810. The N-pt IFFT converts the frequency domain data stream back into the one-time domain.

9 illustrates a sample transmission configuration unit (TXMIT unit) that applies cyclic shift hopping in accordance with one or more aspects described herein. In particular, the TXMIT unit can have at least two time-based time slots 902 and 904 separated by a particular timeline 906. Each time slot 902, 904 can be further divided into a plurality of time blocks and a plurality of sub-frequency frequencies 908, 910, 912, 914. Therefore, each rectangular data portion shown in the TXMIT unit of FIG. 9 includes a specific time block and a specific secondary frequency 908, 910, 912, 914.

The various time blocks of the illustrated TXMIT unit can deliver different types of information. For example, each time slot 902, 904 can have seven time blocks. In addition, the time block can be associated with communication service data or pilot information. As a result, each block contains a "data" indicating a data block or a "P" of a pilot information block. In addition, the pilot information can be associated with a particular service or terminal device (not shown) (eg, corresponding to, for example, Data 1, Data 2, Data 3, or Data 4, or corresponding to P1, P2, P3) Or P4, where an integer indicates the first, second, third or fourth service or terminal respectively). In addition, the data and pilot information associated with a particular service/terminal may be configured to a specific secondary frequency 908, 910, 912, 914. As a more specific example, as illustrated, The first service-associated data and pilot information (e.g., data 1 and P1) are configured to a first secondary frequency 908 of the first time-based time slot 902. In addition, data and pilot information (eg, data 2 and P2) associated with a second service may be configured to one of the second secondary frequency 910 of the first time-based time slot 902, and so on. .

To achieve cyclic shift hopping, the data can be configured to different secondary frequency divisions 908, 910, 912, 914 in the second time slot 904 corresponding to the first time slot 902. As a specific example, the frequency shift between a set of data (eg, material 1) transmitted in the first time slot and a corresponding group of data (eg, data 1) transmitted in the second time slot may have a A linear shift magnitude that is approximately half of the total spectral bandwidth associated with the TXMIT unit. Figure 9 provides an example of such a shift. In particular, the data associated with one of the third sub-frequency 912 of the first time slot 902 (eg, data 1) is shifted up in frequency to one of the first time slots 904 of the second time slot 904. Frequency 908, which is roughly a shift of half the total spectral bandwidth. In addition, FIG. 9 also shows the frequency "package" described above. More specifically, the data configured to the first secondary frequency 908 during the first time slot 902 is shifted to the third secondary frequency 912 and "wrapped" from the upper portion of the frequency spectrum to one of the frequency spectra unit. It will be appreciated that in accordance with the new method of the present invention, other frequency shift values that are substantially different from approximately half of the total bandwidth spectrum can be achieved and that such frequency shifting mechanisms are incorporated as part of the present invention.

Figure 10 illustrates a sample transmission configuration unit for applying image transposed frequency hopping in accordance with additional aspects of the present invention. In particular, the TXMIT unit can have at least two time-based time slots 1002 and 1004 separated by a particular timeline 1006 (e.g., representing one half of the time configured for the TXMIT unit, such as one-half of a millisecond). Each time slot 1002, 1004 can be divided into a plurality of time blocks and a plurality of sub-frequency frequencies 1008, 1010, 1012. Therefore, each rectangular data portion shown in the TXMIT unit of FIG. 10 includes a specific time block and a specific secondary frequency divided by 1008, 1010, 1012.

In a manner similar to that described above with respect to FIG. 9, each time slot 1002, 1004 of the exemplary TXMIT unit of FIG. 10 may have six time slots assigned to the data service and at least one configuration associated with the transmission of the services. The time block of the pilot information. In addition, data and/or pilot information associated with a particular service or terminal device (not shown) may be associated (e.g., corresponding to, for example, Data 1, Data 2, Data 3, or Data 4, or P1, respectively). P2, P3 or P4, wherein an integer represents a first, second, third or third service or terminal, respectively, is configured to a particular secondary frequency of divisions 1008, 1010, 1012.

To achieve mirrored transposition frequency hopping, the data may be configured to different secondary frequency divisions 1008, 1010, 1012 corresponding to the second time slot 1004 of the first time slot 1002. As a specific example, a group of data (for example, data 1) transmitted in the first time slot 1002 and a corresponding group data transmitted in the second time slot 1004 may be transmitted across a center line 1014 of the total frequency spectrum bandwidth. (for example, data 1) Transpose. More specifically, a corresponding second sub-frequency 168, 1010, 1012 may be shifted in the second time slot 1004 with respect to the first sub-frequency 168, 1010, 1012 in the first time slot 1002, such that The second sub-divided frequencies 1008, 1010, 1012 are substantially equidistant above the centerline 1014 (eg, greater than the centerline 1014) or below (eg, less than the centerline 1014) due to the first secondary crossover frequency of 1008, 1010, 1012 are respectively above or below the centerline 1014. Figure 10 provides an example of such a shift. In particular, the first data block (eg, data 1) configured to be assigned to a first sub-frequency 168 in the first time slot 1002 is transposed across the frequency centerline 1014 into a second time slot 1004. One of the third sub-frequency is 1012. More specifically, according to the transposition with respect to the centerline 1014, the third sub-frequency 1012 is substantially far below (eg, less than) the centerline 1014 frequency in the second time slot 1004, due to the first secondary frequency 1008 is above (eg, greater than) the centerline 1014 in the first time slot 1002.

In addition to the above, the image transposed frequency hopping illustrated in Figure 10 can alleviate or eliminate the discontinuity of the tone assignment that can occur with respect to cyclic shift hopping. A second secondary frequency 1010 spans the frequency spectrum centerline 1014 in the first time slot 1002 and is continuous in the first time slot 1002. However, when the data block (e.g., material 2) is transposed into the second time slot 1004 across the frequency spectrum centerline 1014 as described above, the data block is still continuous in the second time slot 1004. As a result, the continuous tone tone assignment constraints required for single carrier transmission can be maintained by the illustrated mirrored transposition frequency hopping. It should be understood that other examples of mirror transpositions that are not specifically depicted in FIG. 10 but are considered by those skilled in the art to be within the scope of the disclosed subject matter are incorporated herein (eg, having an additional sub-frequency, multiple points) Frequency lines (such as quadrant lines, etc.) or the like.

FIG. 11 illustrates an example transmission configuration unit (TXMIT unit) that applies multiple frequency hopping and non-frequency hopping user data according to further aspects. One of the TXMIT units described herein can include at least two time-based time slots 1102, 1104 in which information corresponding to a service or a particular terminal can be shifted in frequency with respect to two time slots 1102, 1104 to assist in Frequency hopping in an SC-FDMA environment.

The frequency hopping multiple can be incorporated into dividing the sub-frequency into two groups and assigning similar sub-frequency of the groups to a particular frequency hopping schedule (FHS) or frequency selective scheduling (FSS). For example, sub-frequency 1108, 1110 that is substantially greater than a particular frequency (eg, centerline frequency) may form a first group, and sub-frequency 1122, 1114 that is substantially less than the particular frequency may form a second group. For example, a centerline frequency (not shown) between the secondary crossover frequencies 1110 and 1112 can depict a sub-frequency group. The data located in the sub-frequency 1108, 1110 above the centerline frequency may form group 1. The data located in the sub-frequency 1122, 1114, which is lower than the center line frequency, can form group 2. The sub-frequency of each group can also be listed using the number of a common group. For example, a set of numbers that satisfies the two sub-frequencyes 1108, 1110, 1112, 1114 in two groups may include {1, 2}. More specifically, the sub-frequency 1108 of the first group can be numbered as 1, and the sub-frequency 1110 of the first group can be numbered 2. In a substantially similar form, the second set of sub-frequency 1612 can be numbered 1 and the second set of sub-frequency 1114 can be numbered 2.

Each of the secondary frequency 1108, 1110, 1112, 1114 assigned to the same number (eg, 1 or 2) within a different group (eg, the first or second group) may be configured for FHS transmission or FSS transmission. As shown in FIG. 11, the first sub-frequency frequency sub-frequency 1108 above the center line is configured to the FHS, and thus the data associated with the first sub-frequency 1108 (eg, data 1) is shifted to The third sub-frequency 1112 in the second time slot 1104. The data schedule assigned to the second secondary frequency sub-frequency 1610 in the group 1 defined above is FSS, and thus the data (eg, data 2) is configured to the second time slot 1104. The second sub-frequency is 1110. In a similar manner, the 1112 of the sub-frequency 1 of group 2 and the 1114 of the sub-frequency 2 of group 2 are respectively allocated to the FHS schedule and the FSS schedule. It should be appreciated that other forms of frequency hopping described herein are incorporated in the present disclosure or other forms of frequency hopping known to those skilled in the art by way of example herein (eg, mirror transposition or multiple hopping) frequency).

Figure 12 illustrates a sample access terminal that can apply frequency hopping in uplink SC-FDMA transmissions according to one or more aspects. Access terminal 1200 includes an antenna 1202 (e.g., a transmission and reception) that receives a signal and performs typical operations (e.g., filtering, amplifying, downconverting, etc.) on the received signal. In particular, antenna 1202 may also receive information about user data across a plurality of time slot frequency shift configurations for a transmission configuration unit in an SC-FDMA uplink transmission, or the like. Antenna 1202 can include a demodulator 1204 that can demodulate the received symbols and provide them to a processor 1206 for evaluation. The processor 1206 can be a processor dedicated to analyzing information received by the antenna 1202 and/or generating information for transmission by the transmitter 1216. In addition, the processor 1206 can be a processor that controls one or more components of the access terminal 1200, and/or a processor that analyzes the information received by the antenna 1202, generates information for transmission by the transmitter 1216, and controls the storage. One or more components of the terminal 1200 are taken. In addition, processor 1206 can execute instructions for interpreting a configuration schedule associated with an uplink transmission (e.g., transmission to a base station) or the like.

Access terminal 1200 can additionally include a memory 1208 operatively coupled to processor 1206 and capable of storing data for transmission, reception, and the like. The memory 1208 can store information related to the uplink configuration data, a protocol for the constructed frequency hopping, an agreement for organizing data in a configuration transmission unit, and demultiplexing the frequency hopped data in one Multiplexing of frequency hopping and scheduling data in uplink transmissions, and the like.

It should be understood that the data storage (eg, memory 1208) described herein can be either volatile or non-volatile, or both volatile and non-volatile. By way of illustration and not limitation, non-volatile memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable PROM (EEPROM), or fast Flash memory. Volatile memory can include random access memory (RAM) used as external cache memory. By way of illustration and not limitation, RAM can be in many forms, such as synchronous RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM). ), Synchronized Link (Synchlink) DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 1208 in the subject systems and methods is intended to include, but is not limited to, such and any other suitable type of memory.

Antenna 1202 can be further operatively coupled to scheduler 1212, which can organize user data into a transport data packet based on information received by antenna 1202. More specifically, the scheduler 1212 can substantially configure the user data frequency shift in different time slots of the transmission data packet to a bandwidth of the uplink transmission (eg, for uplink SC-FDMA transmission). half. The user profile can be configured to the transposed sub-frequency of the transposition of the configuration unit across a centerline frequency of a bandwidth associated with the transmission configuration unit.

Scheduler 1212 can be further coupled to a multiprocessor 1210. The multiprocessor 1210 can select between one of the untransmitted user data and the frequency shifted user data based on an uplink transmission schedule provided by one of the components of the wireless network (e.g., the base station). Multiple processor selected data may be provided to scheduler 1212 for incorporation into a transport data packet. Additionally, multiprocessor 1210 is operatively coupled to memory 1208 to access multiple protocols stored therein.

The access terminal 1200 further includes a modulator 1214 and a signal (eg, including a transport data packet) transmitted to, for example, a base station, an access point, another access terminal, and a remote agent. Wait for the transmitter 1216. Although illustrated as being separate from processor 1206, it should be understood that multiprocessor 1210 and scheduler 1212 can be part of processor 1206 or a number of processors (not shown).

Figure 13 is a graphical illustration of a one-to-one system 1300 that facilitates frequency hopping in an SC-FDMA environment in a manner that maintains single carrier constraints. System 1300 includes a base station 1302 (e.g., an access point) having a receiver 1310 that receives signals from one or more mobile devices 1304 via a plurality of receive antennas 1306, and a transmit antenna 1308 to the one via a transmit antenna 1308. Or a plurality of mobile devices 1304 implement a transmitter 1324 that transmits. Receiver 1310 can receive information from receive antenna 1306 and can further include a signal receiver (not shown) that receives uplink data scheduled according to a transmission configuration time period provided by base station 1302. Additionally, receiver 1310 is operatively associated with a demodulator 1312 that demodulates the received information. The processor 1316 stores information related to the following by providing a demodulated symbol by a processor 1314 coupled to a memory 1316: providing frequency hopping in a manner that maintains single carrier constraints for SC-FDMA transmission; Auditing one of the transmission configuration time periods to determine the location of the user data relative to a frequency centerline; selecting between multiple frequency hopping techniques to maintain a continuous tone assignment; and/or any other implementation described herein Appropriate information about the various actions and functions.

The processor 1314 is further coupled to a multiprocessor 1318 that divides a transmission configuration unit into at least two time-based time slots having a plurality of secondary frequency divisions. Additionally, multiprocessor 1318 can shift one or more of the sub-frequency of the transmission configuration unit relative to one another. As a specific example, the sub-frequency of a first time slot can be shifted by approximately one-half of a transmission bandwidth in the second time slot. Alternatively or additionally, the secondary frequency can be transposed across one of the centerline frequencies of the bandwidth associated with the transmission configuration unit described herein. Moreover, the multiprocessor 1318 can integrate the user data and the configuration of one of the first sub-frequency of one of the first time slots and the second sub-frequency of the second subsequent time slot to the first time. Additional user data for the substantially equal secondary crossover frequency associated with the slot and the second time slot.

The multiprocessor 1318 can be coupled to a scheduler 1320 that can configure a portion of the user profile to a first secondary frequency of a first time slot and then configure one of the user profiles. A second sub-frequency that is frequency shifted by one of the second subsequent slots. In addition, the scheduler 1320 can be coupled to the transmitter 1324. In addition to the functions described above, the transmitter 1324 can broadcast information related to the configuration of the first portion of the user profile and the shifted configuration of the second portion of the user profile to a terminal. The device is used in an SC-FDMA uplink transmission.

In addition to the above, the processor 1314 can evaluate one of the user profiles to identify a second secondary frequency that is configured to the second subsequent time slot of the subsequent portion of the user profile. More specifically, the processor 1314 can determine whether the user profile is configured across a centerline of one of the transmission bandwidths associated with the transmission configuration unit. If this determination is made, multiprocessor 1318 can select between one or more frequency hopping strategies to maintain the single carrier constraints described herein.

Referring now to Figure 14, on the downlink, at access point 1405, a transmit (TX) data processor 1410 receives, formats, codes, interleaves, and modulates (or symbol maps) the traffic data and provides modulation. Symbol ("data symbol"). A symbol modulator 1415 receives and processes the data symbols and pilot symbols and provides a stream of symbols. The symbol modulator 1420 implements multiple data and pilot symbols and provides them to a transmitter unit (TMTR) 1420. Each transmitted symbol can be a data symbol, a pilot symbol, or a signal value of zero. The pilot symbols can be transmitted continuously for each symbol period. The pilot symbols can be divided by frequency division multiplexing (FDM), orthogonal frequency division multiple (OFDM), time division multiple (TDM), frequency division multiple (FDM), and code division multiple (CDM).

The TMTR 1420 receives the symbol stream and converts the symbol stream into one or more analog signals and further conditions (e.g., amplifies, filters, and upconverts) the analog signals to produce a downlink suitable for transmission over a wireless channel. signal. The downlink signal is then transmitted via an antenna 1425 to the terminals. At terminal 1430, an antenna 1435 receives the downlink signal and provides the received signal to a receiving unit (RCVR) 1440. Receive unit 1440 conditions (eg, filters, amplifies, and downconverts) the received signal and digitizes the conditioned signal to obtain a sample. A symbol demodulator 1445 demodulates and provides the received pilot symbols to a processor 1450 for channel estimation. The symbol demodulator 1445 further receives a frequency response estimate of the downlink from the processor 1450, performs data demodulation on the received data symbols to obtain a data symbol estimate (which is an estimate of the transmitted data symbols), and The data symbol estimates are provided to an RX data processor 1455 which demodulates (i.e., symbol demaps), deinterleaves, and decodes the data symbol estimates to recover the transmitted traffic data. The processing performed by symbol demodulator 1445 and RX data processor 1455 is complementary to the processing performed by symbol modulator 1415 and TX data processor 1410 at access point 1405, respectively.

On the uplink, a TX data processor 1460 processes the traffic data and provides data symbols. A symbol modulator 1465 receives the data symbols and multiplies the data symbols and pilot symbols, performs modulation, and then provides a stream of symbols. A transmit unit 1470 then receives and processes the symbol stream to generate an uplink signal that is transmitted via an antenna 1435 to an access point 1405. In particular, the uplink signal may be in accordance with SC-FDMA requirements and may include the frequency hopping mechanism described herein.

At access point 1405, an uplink signal from terminal 1430 is received by antenna 1425 and processed by a receiving unit 1475 to obtain samples. A symbol demodulator 1480 then processes the samples and provides received uplink pilot symbols and data symbol estimates. An RX data processor 1485 processes the data symbol estimates to recover the traffic data transmitted by the terminal unit 1430. A processor 1490 performs channel estimation for each active terminal that implements transmissions on the uplink. Multiple terminals may simultaneously transmit pilots on their respective assigned pilot sub-band groups on the uplink, where the pilot sub-band groups may be interleaved.

Processors 1490 and 1450 direct (eg, control, coordinate, manage, etc.) operations at access point 1405 and terminal 1430, respectively. Each processor 1490 and 1435 can be associated with a memory unit (not shown) for storing code and data, respectively. Processors 1490 and 1450 can also perform computations to derive frequency and impulse response estimates for the uplink and downlink, respectively.

For a multiple access system (eg, SC-FDMA, FDMA, OFDMA, CDMA, TDMA, TDMA, etc.), multiple terminals can transmit simultaneously on the uplink. For this system, the pilot subbands can be shared by different terminals. The channel estimation technique can be used in situations where the pilot subbands of each terminal span the entire operating band (possibly except for the band edges). In order to obtain the frequency diversity of each terminal, this pilot subband structure will be better. The techniques described herein can be performed by different components. For example, such techniques can be implemented in hardware, software, or a combination thereof. For hardware implementations, which may be coefficient bits, analogs, or digits and analogs, the processing unit used for channel estimation may be constructed in one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), Digital Signal Processing Unit (DSPD), Programmable Logic Device (PLD), Field Programmable Gate Array (FPGA), Processor, Controller, Microcontroller, Microprocessor, and others designed to perform the functions described herein The electronic unit, or a combination thereof. For software, it can be constructed by modules (eg, programs, functions, etc.) that perform the functions described herein. The software codes can be stored in the memory unit and executed by the processors 1490 and 1450.

It will be appreciated that the embodiments described herein can be implemented in hardware, software, firmware, intermediates, microcode, or any combination thereof. For hardware implementations, each processing unit can be built into one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), and programmable logic devices (PLDs). ), Field Programmable Gate Array (FPGA), processor, controller, microcontroller, microprocessor, other electronic unit designed to perform the functions described herein, or a combination thereof.

When the embodiments are implemented in a software, firmware, intermediate or microcode, code or code segment, they can be stored in a machine readable medium such as a storage component. A code segment can represent a program, a function, a subprogram, a program, a routine, a subroutine, a module, a software package, a class, or any combination of instructions, data structures, or program statements. A code segment can be coupled to another code segment or a hardware circuit by passing and/or receiving information, data, arguments, parameters, or memory contents. Information, self-variables, parameters, data, etc. can be transmitted, transferred or transmitted using any suitable means including memory sharing, messaging, token transfer, network transmission, and the like.

For a software build scheme, the techniques described herein can be implemented using modules (eg, programs, functions, etc.) that perform the functions described herein. The software code can be stored in the memory unit and executed by the processor. The memory unit can be built into the processor or external to the processor. In the case where the memory unit is external to the processor, the memory unit can be communicatively coupled to the processor by various methods known in the art. .

Referring to Figure 15, an exemplary system 1500 is illustrated that provides frequency hopping for SC-FDMA transmission in a manner that maintains single carrier constraints. For example, system 1500 can reside at least in part in a wireless communication network and/or in a transmitter such as a node, base station, access point, or the like. It will be appreciated that system 1500 is represented as including a number of functional blocks, which may be functional blocks representing functions performed by a processor, software, or combination thereof (e.g., firmware).

System 1500 can include a module 1502 for dividing a transmission configuration unit into at least two time-based time slots having a plurality of secondary frequency divisions. For example, the secondary frequency divisions can include a portion of the total system frequency spectral bandwidth. In addition, the sub-frequency can be frequency shifted with respect to different time-based time slots. As described herein, data belonging to a service can be configured to multiple frequency shifted portions of different time slots to facilitate frequency hopping in an SC-FDMA environment. More specifically, the sub-frequency of one-time slot can be shifted according to a linear cyclic shift with respect to the sub-frequency of another time slot. For example, a portion of the total system spectral bandwidth (eg, approximately one-half, or one-third or one-quarter, etc.) may be used to linearly shift the secondary frequency of the one-time slot. Alternatively or additionally, the secondary crossover frequency can be shifted by mirror transposition of one of the centerlines of the spectral bandwidth (or one or more non-centerlines such as, for example, third, quadrant, and the like) . In addition to the above, the frequency hopping and non-frequency hopping sub-frequency can be multiplexed in one or more time slots as described herein.

System 1500 can further include a module 1504 for configuring data to a transmission configuration unit. More specifically, the module 1504 can configure one part of the user data to one of the first sub-frequency of the first time slot, and configure one of the user data to the second subsequent time slot. The second sub-frequency of the shift. According to a further aspect, system 1500 can include a module 1506 for shifting the frequency of a portion of its configured time period. For example, module 1506 can shift a second sub-frequency by a first sub-frequency as described above.

In accordance with another aspect of the present invention, system 1500 can include a module 1508 for transmitting data to a terminal. For example, the module 1508 can transmit information related to the configuration of the first part of the user data and the shift configuration of the second part of the user data to a terminal device for an SC-FDMA uplink. In transit. As a result, the terminal device can combine the low interference and high diversity nature of the frequency hopping transmission with the low PAPR nature of the SC-FDMA transmission.

According to a further aspect, system 1500 can include a module 1510 for multiplexing multiple data in a configuration unit. The module 1510 configures the user profile of the first secondary frequency divided by the first time slot and the second secondary frequency of the second subsequent time slot to be associated with the first and second time slots. Additional user data for equal sub-frequency is multiple. As a more general example, module 1510 can multiplex the cyclically shifted data with mirrored transposed data and/or with frequency selective scheduling data. As a result, system 1500 can provide both frequency hopping or non-hopping as required by the service and/or device constraints.

In accordance with a related aspect of the novel method of the present invention, system 1500 can include a module 1512 for evaluating a user profile. In particular, the module 1512 can evaluate the user data for a schedule to identify one of the second time slots of the user profile with respect to the data associated with the first sub-frequency and the time slot. Sub-frequency. As a more specific example, module 1512 can evaluate one of the user profiles to determine if the user profile spans one of the transmission bandwidths associated with a transmission configuration unit (or one or more, for example, one or more Non-central frequency line) configuration. As a result, the module 1512 can facilitate one or more frequency hopping mechanisms (eg, cyclic shift, mirror transpose, and/or multiple frequency hopping) that are suitable for minimizing PAPR and transmitting interference and maximizing frequency diversity. Choose between.

Referring to Figure 16, an exemplary system 1600 is illustrated that can apply frequency hopping in an SC-FDMA uplink transmission in accordance with one or more aspects. System 1600 can reside at least partially within, for example, a mobile device. As shown, system 1600 includes a number of functional blocks that can represent functions performed by a processor, software, or a combination thereof (e.g., firmware).

System 1600 can include a module 1602 for receiving frequency shift information. More specifically, the module 1602 can receive information regarding frequency shift configuration of user data across a plurality of time slots for one of the SC-FDMA uplink transmissions. Additionally, system 1600 can include a module 1604 for organizing uplink user profiles. For example, the module 1604 can organize the user data into a transmission data packet according to the information received by the module 1502 for receiving the frequency shift information. More specifically, the organizen data causes the data to be shifted by one-half the bandwidth of one of the transmission configuration units with respect to one of the first and second time slots of the data packet. Alternatively or additionally, the data may be configured to transpose the frequency-shifted sub-frequency of the configuration unit to span a centerline frequency of one of the bandwidths associated with the transmission configuration unit. According to still other aspects, the data can be configured to the same secondary crossover frequency of the first and second time slots. As a result, system 1600 can achieve various frequency hopping mechanisms or non-frequency hopping as required by the device and/or service constraints.

The examples above include examples of one or more aspects. Of course, it is not possible to describe every conceivable combination of components or methods for the purpose of illustrating the foregoing aspects, but it will be apparent to those skilled in the art that many further combinations and permutations of various aspects are possible. Accordingly, the described aspects are intended to cover all such changes, modifications, and variations that are within the scope of the appended claims. In addition, the term "includes" as used in this detailed description or the scope of the patent application, the manner in which the wording is included and the word "comprising" is used as a turning point in a claim. The explanation is the same.

100. . . Wireless communication system

102a. . . Geographical area

102b. . . Geographical area

102c. . . Geographical area

104a. . . Smaller area

104b. . . Smaller area

104c. . . Smaller area

110. . . Base station

120. . . Terminal

130. . . System controller

200. . . Wireless communication environment

202. . . Base station

204. . . Mobile device

206a. . . Geographical area

206b. . . Geographical area

206c. . . Geographical area

206d. . . Geographical area

802. . . Serial to parallel converter

804. . . Q-point discrete Fourier transform device

806. . . Spectrum shaping component

808. . . Tone mapping component

810. . . N-point inverse fast Fourier transform

902. . . Time slot

904. . . Time slot

906. . . timeline

908. . . Secondary frequency

910. . . Secondary frequency

912. . . Secondary frequency

914. . . Secondary frequency

1002. . . Time-based slot

1004. . . Time-based slot

1006. . . timeline

1008. . . Secondary frequency

1010. . . Secondary frequency

1012. . . Secondary frequency

1014. . . Center line

1102. . . Time slot

1104. . . Time slot

1108. . . Secondary frequency

1110. . . Secondary frequency

1112. . . Secondary frequency

1114. . . Secondary frequency

1200. . . Access terminal

1202. . . antenna

1204. . . Demodulation transformer

1206. . . processor

1208. . . Memory

1210. . . Multiple processor

1212. . . Scheduler

1214. . . Modulator

1216. . . transmitter

1300. . . system

1302. . . Base station

1304. . . Mobile device

1306. . . Receive antenna

1308. . . Transmitting antenna

1310. . . Receiver

1312. . . Demodulation transformer

1314. . . processor

1316. . . Memory

1318. . . Multiple processor

1320. . . Scheduler

1324. . . transmitter

1405. . . Access point

1410. . . Transmit (TX) data processor

1415. . . Symbol modulator

1420. . . Symbol modulator

1425. . . antenna

1430. . . Terminal

1435. . . antenna

1440. . . Receiving unit

1445. . . Symbol demodulation transformer

1450. . . processor

1455. . . RX data processor

1460. . . TX data processor

1465. . . Symbol modulator

1470. . . Launch unit

1475. . . Receiving unit

1480. . . Symbol demodulation transformer

1485. . . RX data processor

1490. . . processor

1500. . . Instance system

1502. . . Module

1504. . . Module

1506. . . Module

1508. . . Module

1510. . . Module

1512. . . Module

1600. . . system

1602. . . Module

1604. . . Module

Figure 1 illustrates a wireless communication system in accordance with various aspects described herein.

2 illustrates an example communication device for use in a wireless communication environment.

3 illustrates an example method for facilitating frequency hopping in single carrier frequency division multiple access (SC-FDMA) transmission.

4 illustrates an example method for providing cyclic shift hopping for SC-FDMA transmission.

Figure 5 illustrates an exemplary method of mirrored transposed frequency hopping for SC-FDMA transmission.

6 illustrates an example method for selecting between multiple SC-FDMA frequency hopping mechanisms based on user profile configuration based on one or more aspects.

Figure 7 illustrates an exemplary method for multiplexing frequency hopping and non-hopping transmissions in an SC-FDMA environment.

Figure 8 illustrates an exemplary SC-FDMA signal conversion that provides a low peak-to-average power ratio.

Figure 9 illustrates an example transmission configuration unit that applies cyclic shift hopping in accordance with one or more aspects.

Figure 10 illustrates an example transmission configuration unit that applies image transposed frequency hopping according to additional aspects.

FIG. 11 illustrates an exemplary transmission configuration unit for applying multiple frequency hopping and non-frequency hopping user data according to a further aspect.

Figure 12 illustrates an example access terminal that applies frequency hopping in uplink SC-FDMA transmissions in accordance with one or more aspects.

Figure 13 illustrates an exemplary base station that can be utilized in conjunction with one of the wireless network environment applications described herein.

14 illustrates an example system that facilitates frequency hopping transmission in an SC-FDMA environment in accordance with the aspects disclosed herein.

15 illustrates a system for facilitating frequency hopping of uplink SC-FDMA transmissions by one or more user terminals.

16 illustrates a system for applying frequency hopping of uplink SC-FDMA transmissions to one or more network base stations.

(no component symbol description)

Claims (49)

A method for performing frequency hopping in a single carrier frequency division multiple access (SC-FDMA) transmission, comprising: receiving information about a transmission configuration unit spanning first and second time slots At least two time-based time slots, and a plurality of sub-frequency divided frequencies including first and second sub-frequency; based on the first sub-frequency in the first time slot and further based on mirroring Setting a frequency hopping or cyclic shift hopping or both to determine the second secondary frequency in the second time slot; and transmitting in the first secondary frequency of the first time slot And data in the second sub-frequency of the second time slot. The method of claim 1, wherein the second sub-frequency is determined according to a cyclic shift hopping, and wherein the information indicates a frequency shift between the first and the second sub-frequency . The method of claim 1, wherein the second sub-frequency is determined according to a cyclic shift hopping frequency, and is shifted from the first sub-frequency by one-half of a transmission bandwidth in frequency. The method of claim 1, wherein the second sub-frequency is determined according to the image transposed frequency hopping, and wherein the first and the second sub-frequency are transposed across a center line frequency of one transmission bandwidth The second secondary frequency is substantially equidistantly located above or below the centerline frequency when the first secondary frequency is substantially at or above the centerline frequency, respectively. The method of claim 3, wherein if the data is scheduled such that it does not cross a centerline frequency of the transmission bandwidth, the second secondary frequency is at a frequency The shift from the first sub-frequency is approximately one-half of the transmission bandwidth. The method of claim 4, wherein if the data is scheduled such that it spans the centerline frequency, the first and second secondary frequency divisions are transposed across the centerline frequency of the transmission bandwidth. The method of claim 1, wherein the at least two time-based time slots comprise a substantially equal time portion associated with the transmission configuration unit. The method of claim 1, wherein the data from the other user is transmitted in the second sub-frequency of the first time slot and in the first sub-frequency of the second time slot. The method of claim 1, wherein the first sub-frequency is within a first frequency of a frequency of one of the transmission bandwidths, and wherein the second sub-frequency is at the transmission bandwidth A second frequency within a relative edge. The method of claim 1, further comprising: generating a first plurality of SC-FDMA symbols of the data transmitted in the first sub-frequency of the first time slot; and generating the second A second plurality of SC-FDMA symbols of the data transmitted in the second sub-frequency of the time slot. An apparatus for performing frequency hopping in a single carrier frequency division multiple access (SC-FDMA) transmission, comprising: means for receiving information about a transmission configuration unit, the transmission configuration unit spanning the first and second At least two time-based time slots of the time slot, and a plurality of sub-frequency division frequencies including the first and second sub-frequency; Determining, in the second time slot, based on the first sub-frequency in the first time slot and further depending on a mirrored transposition frequency or a cyclic shift frequency hopping or both a component of the second frequency dividing frequency; and means for transmitting data in the first secondary frequency of the first time slot and in the second secondary frequency of the second time slot. The device of claim 11, wherein the second secondary frequency is determined according to a cyclic shift frequency hopping, and wherein the information indicates a frequency shift between the first and second secondary frequency . The device of claim 11, wherein the second sub-frequency is determined according to a cyclic shift hopping frequency, and is shifted from the first sub-frequency by one-half of a transmission bandwidth in frequency. The device of claim 11, wherein the second sub-frequency is determined according to the image transposed frequency hopping, and wherein the first and the second sub-frequency are transposed across a center line frequency of one transmission bandwidth The second secondary frequency is substantially equidistantly located above or below the centerline frequency when the first secondary frequency is substantially at or above the centerline frequency, respectively. The device of claim 13, wherein if the data is scheduled such that it does not span a centerline frequency of the transmission bandwidth, the second secondary frequency is shifted in frequency from the first secondary frequency. One half of the transmission bandwidth. The device of claim 14, wherein the first and second secondary frequency divisions transpose across the centerline frequency of the transmission bandwidth if the data is scheduled such that it spans the centerline frequency. The device of claim 11, wherein the at least two time-based time slots comprise a substantially equal time portion associated with the transmission configuration unit. The device of claim 11, wherein the data from the other user is transmitted in the second sub-frequency of the first time slot and in the first sub-frequency of the second time slot. The device of claim 11, wherein the first sub-frequency is within a first frequency of a frequency of one of the transmission bandwidths, and wherein the second sub-frequency is at the transmission bandwidth A second frequency within a relative edge. The device of claim 11, further comprising: means for generating a first plurality of SC-FDMA symbols of the data transmitted in the first sub-frequency of the first time slot; and Generating a component comprising a second plurality of SC-FDMA symbols of the data transmitted in the second sub-frequency of the second time slot. An apparatus for performing frequency hopping in a single carrier frequency division multiple access (SC-FDMA) transmission, comprising: at least one processor configured to receive information about a transmission configuration unit, the transmission configuration unit spanning At least two time-based time slots including the first and second time slots, and a plurality of secondary frequency division frequencies including the first and second secondary frequency divisions, based on the first secondary frequency in the first time slot Dividing the frequency and further determining the second sub-frequency in the second time slot according to the mirrored transposition frequency hopping or the cyclic shift frequency hopping or both, and transmitting in the first time slot Information in the first sub-frequency and in the second sub-frequency of the second time slot. The device of claim 21, wherein the second sub-frequency is determined according to a cyclic shift hopping frequency, and wherein the information is indicated in the first and the first A frequency shift between the two sub-frequency. The device of claim 21, wherein the second sub-frequency is determined according to a cyclic shift hopping frequency, and the frequency is shifted by one-half of a transmission bandwidth with respect to the first sub-frequency. The device of claim 21, wherein the second sub-frequency is determined according to the image transposed frequency hopping, and wherein the first and the second sub-frequency are transposed across a center line frequency of one transmission bandwidth The second secondary frequency is substantially above or below the centerline frequency when the first secondary frequency is substantially at or above the centerline frequency. The device of claim 23, wherein if the data is scheduled such that it does not span a centerline frequency of the transmission bandwidth, the second secondary frequency is shifted in frequency from the first secondary frequency. One half of the transmission bandwidth. The device of claim 24, wherein if the data is scheduled such that it spans the centerline frequency, the first and second secondary frequency divisions are transposed across the centerline frequency of the transmission bandwidth. The device of claim 21, wherein the at least two time-based time slots comprise a substantially equal time portion associated with the transmission configuration unit. The device of claim 21, wherein the data from the other user is transmitted in the second secondary frequency of the first time slot and in the first secondary frequency of the second time slot. The device of claim 21, wherein the first secondary frequency is within a first frequency divided by one of the edges of the transmission bandwidth, and wherein the second secondary frequency is at the transmission bandwidth A second frequency within a relative edge. The device of claim 21, wherein the processor is further configured to generate a first plurality of SC-FDMA symbols of the data transmitted in the first secondary frequency of the first time slot, and to generate And a second plurality of SC-FDMA symbols of the data transmitted in the second sub-frequency of the second time slot. A processor for facilitating frequency hopping in a single carrier frequency division multiple access (SC-FDMA) transmission, comprising: means for receiving information about a transmission configuration unit, the transmission configuration unit spanning the first and the At least two time-based time slots of the second time slot, and a plurality of secondary frequency division frequencies including the first and second secondary frequency; for determining the first secondary frequency in the first time slot And further determining, according to the mirror transposition frequency hopping or the cyclic shift hopping frequency, or both, the means for determining the second sub-frequency in the second time slot; and for transmitting in the first time slot a component of the data in the first sub-frequency and in the second sub-frequency of the second time slot. A computer readable medium comprising code for facilitating frequency hopping in a single carrier frequency division multiple access (SC-FDMA) transmission, the code being executable by at least one computer to: receive information about a transmission configuration Information about the unit, the transmission configuration unit spanning at least two time-based time slots including the first and second time slots, and a plurality of secondary frequency division frequencies including the first and second secondary frequency divisions; The first sub-frequency of the one-time slot is further determined by the image transposition frequency hopping or the cyclic shift frequency hopping or both The second sub-frequency of the second time slot; and the data transmitted in the first sub-frequency of the first time slot and the second sub-frequency of the second time slot . A method for receiving data via a single carrier divided multiple access (SC-FDMA) uplink channel using frequency hopping, comprising: determining a transmission configuration unit, the transmission configuration unit spanning the first and second At least two time-based time slots of the time slot, and a plurality of sub-frequency divided frequencies including the first and second sub-frequency, wherein the second sub-frequency in the second time slot is based on Determining the first sub-frequency in the first time slot and further determining whether the image is in accordance with a mirrored transposition frequency hopping or a cyclic shift frequency hopping or both; and receiving the first pair of the first time slot The data transmitted in the frequency division frequency and in the second sub-frequency of the second time slot. The method of claim 33, further comprising transmitting information regarding the transmission configuration unit. The method of claim 33, wherein the second sub-frequency is determined according to a cyclic shift hopping frequency and is shifted from the first sub-frequency by one-half of a transmission bandwidth in frequency. The method of claim 33, wherein the second secondary frequency is determined based on a mirrored transposed frequency hopping, and the transposition spans a centerline frequency of one of the transmission bandwidths of the first secondary frequency. The method of claim 33, further comprising transmitting information indicating whether the terminal device is using the undivided or frequency shifted sub-frequency for uplink transmission in the transmission configuration unit. An apparatus for receiving data via a single carrier divided multiple access (SC-FDMA) uplink channel by using frequency hopping, comprising: means for determining a transmission configuration unit, the transmission configuration unit spanning the first At least two time-based time slots of the second time slot, and a plurality of secondary frequency division frequencies including first and second secondary frequency divisions, wherein the second secondary frequency division frequency in the second time slot Determining based on the first sub-frequency in the first time slot and further depending on mirrored transposition frequency hopping or cyclic shift frequency hopping or both; and for receiving in the first time slot a component of the first secondary frequency divided by the data transmitted in the second secondary frequency of the second time slot. The device of claim 38, further comprising means for transmitting information regarding the transmission configuration unit. The device of claim 38, wherein the second sub-frequency is determined according to a cyclic shift hopping frequency and is shifted from the first sub-frequency by one-half of a transmission bandwidth in frequency. The device of claim 38, wherein the second secondary frequency is determined based on a mirrored transposed frequency hopping, and the transposition spans a centerline frequency of one of the transmission bandwidths of the first secondary frequency. The device of claim 38, further comprising transmitting information indicating whether the terminal device uses the undivided or frequency shifted sub-frequency for uplink transmission in the transmission configuration unit. An apparatus for receiving data via a single carrier divided multiple access (SC-FDMA) uplink channel using frequency hopping, comprising: at least one processor configured to determine a transmission configuration unit, The transmission configuration unit spans at least two time-based time slots including the first and second time slots, and a plurality of secondary frequency division frequencies including the first and second secondary frequency divisions, and based on the first time slot The first sub-dividing frequency and the second sub-frequency in the second time slot are further determined according to the mirror transposed frequency hopping or the cyclic shift hopping or both. The device of claim 43, wherein the at least one processor is further configured to transmit information regarding the transmission configuration unit. The device of claim 43, wherein the second sub-frequency is determined according to a cyclic shift hopping frequency and is shifted from the first sub-frequency by one-half of a transmission bandwidth in frequency. The device of claim 43, wherein the second secondary frequency is determined based on a mirrored transposed frequency hopping, and the transposition spans a centerline frequency of one of the transmission bandwidths of the first secondary frequency. The device of claim 43, wherein the at least one processor is further configured to transmit information indicating whether a terminal device is using a frequency offset or a frequency offset sub-frequency for uplink in the transmission configuration unit Link transmission. A processor for receiving data transmission via a single carrier divided multiple access (SC-FDMA) uplink channel by using frequency hopping, comprising: means for determining a transmission configuration unit, the transmission configuration unit spanning At least two time-based time slots of the first and second time slots, and a plurality of secondary frequency division frequencies including the first and second secondary frequency divisions, wherein the second secondary frequency division in the second time slot The frequency is based on the first sub-frequency in the first time slot and further depending on the image transposed frequency hopping or Cyclic shift hopping or both are determined; and for receiving in the first sub-frequency of the first time slot and in the second sub-frequency of the second time slot The component of the data. A computer readable medium, comprising code for facilitating the use of frequency hopping to receive data via a single carrier divided multiple access (SC-FDMA) uplink channel, the code being executable by at least one computer to: Determining a transmission configuration unit, the transmission configuration unit spanning at least two time-based time slots including the first and second time slots, and a plurality of secondary frequency division frequencies including the first and second secondary frequency divisions, wherein The second sub-frequency in the second time slot is based on the first sub-frequency in the first time slot and further based on mirror transposition frequency hopping or cyclic shift frequency hopping or both Determining; and receiving data transmitted in the first sub-frequency of the first time slot and in the second sub-frequency of the second time slot.